ΣΔ Sigma-Delta (type of ADC)
2G Second Generation Mobile Communications (Digital Cellular – eg GSM, PDC, IS-95, TDMA)
2.5G Enhanced Second Generation Mobile Communications, for packet and high speed data (eg GPRS, HSCSD, EDGE)
3G Third Generation Mobile Communications – a family of standards developed under the umbrella of IMT-2000
3GPP 3rd Generation Partnership Project
802.11 Wireless LAN standard (see
A/D Analog to Digital (Converter)
AcA Server type used for reconfiguration validation: Authentication/Authorisation/Encryption – Virtual configuration – Accounting/Billing
ACF Auto Correlation Function
ACM Adaptive Computing Machine
ACP Adjacent Channel Power
ACPR Adjacent Channel Power Ratio
ADC Analog to Digital Converter
ADSL Asynchronous Digital Subscriber Line
AFE Analog Front End
AGC Automatic Gain Control
AIS Air Interface Standard
AI-SR Adaptive Intelligent Software Radio
ALU Arithmetic Logic Unit
AM Amplitude Modulation
AMPS Advanced Mobile Phone Service, US first generation mobile phone standard
AMR Adaptive Multi-Rate
AN 2/6 North American 2-band 6-mode radio design
APCO 25 North American Digital Law Enforcement Standard
API Application Programming Interface
ARPA (US) Advanced Research Projects Agency (previously DARPA)
ASIC Application Specific Integrated Circuit
ATM Asynchronous Transfer Mode
BCCH Broadcast Control Channel
BCH Broadcast Channel
BER Bit Error Rate
BiCMOS ...

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